public virtual void TestHighestPriReplSrcChosenDespiteMaxReplLimit()
{
bm.maxReplicationStreams = 0;
bm.replicationStreamsHardLimit = 1;
long blockId = 42;
// arbitrary
Block aBlock = new Block(blockId, 0, 0);
IList <DatanodeDescriptor> origNodes = GetNodes(0, 1);
// Add the block to the first node.
AddBlockOnNodes(blockId, origNodes.SubList(0, 1));
IList <DatanodeDescriptor> cntNodes = new List <DatanodeDescriptor>();
IList <DatanodeStorageInfo> liveNodes = new List <DatanodeStorageInfo>();
NUnit.Framework.Assert.IsNotNull("Chooses source node for a highest-priority replication"
+ " even if all available source nodes have reached their replication" + " limits below the hard limit."
, bm.ChooseSourceDatanode(aBlock, cntNodes, liveNodes, new NumberReplicas(), UnderReplicatedBlocks
.QueueHighestPriority));
NUnit.Framework.Assert.IsNull("Does not choose a source node for a less-than-highest-priority"
+ " replication since all available source nodes have reached" + " their replication limits."
, bm.ChooseSourceDatanode(aBlock, cntNodes, liveNodes, new NumberReplicas(), UnderReplicatedBlocks
.QueueVeryUnderReplicated));
// Increase the replication count to test replication count > hard limit
DatanodeStorageInfo[] targets = new DatanodeStorageInfo[] { origNodes[1].GetStorageInfos
()[0] };
origNodes[0].AddBlockToBeReplicated(aBlock, targets);
NUnit.Framework.Assert.IsNull("Does not choose a source node for a highest-priority"
+ " replication when all available nodes exceed the hard limit.", bm.ChooseSourceDatanode
(aBlock, cntNodes, liveNodes, new NumberReplicas(), UnderReplicatedBlocks.QueueHighestPriority
));
}